Note: Use the speed for the actual hole dia not generally the speed for the drill outer dia .
dia 6 mm with HB drive flat. Solid Carbide NC Spotting Drill, 4 mm, 90 Deg, Spiral Flutes, Uncoated Exactly central ground point. Application: Point angle 90 degrees for spot drilling and countersinking in one operation when a drill of smaller dia is used afterwards. Through-coolant: no Shank: DIN 6535 HA to h6 Flute length Lc: 10 mm Overall length L: 40 mm Shank dia Ds: 4 mm Feed f in steel Easy spot drilling and high shape accuracy of the center hole.